"Poly RealPresence Trio 8500 (2200-66700-019) VoIP Conference Phone. Supports SIP or Skype for Business (Cloud Office 365).

Features
- 5"" (720x1280 Pixel) Color Touchscreen Display
- Supports Gestures and Multi-Touch
- 3 Mute Buttons with Illumination
- 14 Ft 360 Degree Microphone Range
- Supports up to 2 Optional Expansion Microphones
- Fast Ethernet (10/100) Network Port
- 802.3at (Class 4) Power Over Ethernet (PoE) Powered
- Supports up to 3 SIP Registrations on the Same Systems (Max 1 Skype for Business)
- Supports PolyCom HD Voice and Acoustic Clarity Technology
- Integrated Bluetooth 5.0
- Supports Connection to Mobile Devices via Bluetooth, USB or NFC
- Supports Connection to PC via USB
- Supports Optional Visual+ Accessory and Camera
- Certified for Microsoft Skype for Business
- Can Be Used with SIP or Skype for Business, But Not Both Simultaneously

Compatibility
- *******Compatible Services******
- Microsoft Skype for Business Certified
- SIP Compliant Telephone Systems
- SIP Service Providers
- *******Compatible Components*******
- Polycom RealPresense Trio Visual+ Accessory (2200-21540-001)
- Polycom Trio Expansion Microphone Kit (2200-65790-001)

"